Measurement device

摘要

A handheld measurement device (10) for enabling a user to measure a person's muscle strength and range of motion associated with a limb movement about a joint in a movement plane comprises a handheld housing (12) having a contact surface that is arranged to contact a part of the person's limb during the limb movement; a 3D orientation sensor mounted within the housing that is arranged to sense the 3D orientation of the device in 3D space and generate representative 3D orientation signals during the limb movement; a force sensor associated with the contact surface that is arranged to sense the force applied by the person's limb to the contact surface and generate representative force signals during the limb movement; and a control system that is arranged to concurrently receive the 3D orientation signals and force signals from the respective sensors during a limb movement and process those signals to generate force data indicative of the force applied by the person's limb to contact surface during the limb movement and angular rotation data indicative of the angle of rotation of the limb about the joint in the movement plane during the limb movement. Also disclosed is a handheld sensor unit for enabling a user to measure a person's muscle strength and range of motion associated with a limb movement about a joint in a movement plane, comprising a handheld housing having a contact surface that is arranged to contact a part of the person's limb during the limb movement; 3D orientation sensor mounted within the housing that is arranged to sense the 3D orientation of the device in 3D space and generate representative 3D orientation signals during the limb movement; a force sensor associated with the contact surface that is arranged to sense the force applied by the person's limb to the contact surface and generate representative force signals; and a control system that is arranged to concurrently receive the 3D orientation signals and force signals from the respective sensors during a limb movement and transmit those to an external device. A method of measuring a person's muscle strength and range of motion associated with a limb movement about a joint using the above described handheld measurement device or handheld sensor unit is disclosed.